:root{
  --bg:#f8fafc;
  --card:#ffffff;
  --text:#0f172a;
  --muted:#475569;
  --line:#e2e8f0;
  --brand:#2563eb;
  --brand2:#1d4ed8;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI",Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text)}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:920px;margin:0 auto;padding:32px 20px 64px}
.nav{display:flex;gap:18px;flex-wrap:wrap;align-items:center;justify-content:space-between;margin-bottom:28px}
.nav-links{display:flex;gap:16px;flex-wrap:wrap}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--text)}
.logo-mark{width:36px;height:36px;border-radius:10px;background:linear-gradient(180deg,#60a5fa,#2563eb);display:inline-flex;align-items:center;justify-content:center;color:#fff;font-size:18px;font-weight:800}
.hero{background:linear-gradient(180deg,#eff6ff,#ffffff);border:1px solid #dbeafe;border-radius:24px;padding:36px}
.hero h1{margin:0 0 12px;font-size:clamp(32px,4vw,46px);line-height:1.06}
.hero p{margin:0 0 18px;color:var(--muted);font-size:18px;max-width:720px}
.badges{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}
.badge{background:#fff;border:1px solid var(--line);color:var(--muted);padding:8px 12px;border-radius:999px;font-size:14px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin-top:24px}
.card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:20px}
.card h3{margin:0 0 10px;font-size:18px}
.card p{margin:0;color:var(--muted);line-height:1.5}
.panel{background:#fff;border:1px solid var(--line);border-radius:20px;padding:28px}
.panel h1,.panel h2,.panel h3{scroll-margin-top:80px}
.panel h1{margin-top:0;font-size:34px}
.panel h2{margin-top:30px;font-size:22px}
.panel p,.panel li{color:var(--muted);line-height:1.65}
.panel ul{padding-left:20px}
.meta{color:var(--muted);font-size:14px;margin-bottom:14px}
.note{background:#f8fafc;border:1px solid var(--line);padding:14px 16px;border-radius:14px;color:var(--muted)}
.footer{margin-top:28px;color:var(--muted);font-size:14px}
hr{border:none;border-top:1px solid var(--line);margin:24px 0}
.cta{display:inline-block;background:var(--brand);color:#fff;padding:12px 16px;border-radius:12px;font-weight:600}
.cta:hover{background:var(--brand2);text-decoration:none}
.small{font-size:14px;color:var(--muted)}
.kv{display:grid;grid-template-columns:180px 1fr;gap:10px;margin:12px 0}
.kv b{color:var(--text)}
@media (max-width:640px){
  .kv{grid-template-columns:1fr}
  .hero{padding:24px}
  .panel{padding:20px}
}